How do subduction zones initiate, develop and end: Imaging the Reversal of Subduction in the Solomon Islands (NERC grant NE/M00788X/1)

Dataset description

In this urgency proposal we will deploy seismometers for 1 year to record aftershocks from sequence of 4 major earthquakes with magnitudes between 7.1-7.6. These recordings and other recordings of earthquakes from around the globe will allow us to delineate with high accuracy the plate interfaces of the new and old subducting slabs and image the slab structures at depth. The structure of the old and new subduction zones will illuminate the processes occurring at depth which are shifting the force balance in the region to reverse the sense of subduction. The proposed experiment will be enhanced by concurrent studies scheduled to be deployed in Fall of 2014, which includes a multimillion pound ocean bottom seismic deployment by colleagues in Japan. The combined array will allow us to image the Pacific plate which is stalling the subduction, allowing us to investigate what conditions are necessary for a plate to halt the descent of the slab into the mantle. Thus we will be able to understand how subduction stops and starts. Data available online at the Incorporated Research Institutions for Seismology (IRIS) Data Management Centre (DMC).

Constraints

Data available online at the Incorporated Research Institutions for Seismology (IRIS) Data Management Centre (DMC).

Further information

For more information please contact:

Enquiries

Environmental Science Centre, Nicker Hill, Keyworth
Nottingham
NG12 5GG

Tel : +44 (0)115 936 3143
Fax :+44 (0)115 936 3276
Email :enquiries@bgs.ac.uk

 

Dataset details

Author(s) Dr Nicholas Harmon
Principal Investigator(s) Dr Nicholas Harmon
Ocean and Earth Science
University of Southampton
Language English
Curator British Geological Survey
Supply media/format SEED format; Version:
Storage format Not available
Frequency of update not applicable
Start of capture {ts '2014-10-01 00:00:00'} Not known
End of capture {ts '2015-12-31 00:00:00'} 31st December 2015
Contact details
Department Enquiries
Organisation British Geological Survey
Address Environmental Science Centre, Nicker Hill, Keyworth
City Nottingham
County Nottinghamshire
Country United Kingdom
Postcode NG12 5GG
E-mail enquiries@bgs.ac.uk
Telephone +44 (0)115 936 3143
Fax +44 (0)115 936 3276
Keywords
Topic category code (ISO) geoscientificInformation (information pertaining to earth sciences)
Keywords EARTH CORE
EARTH MANTLE
PLATE TECTONICS
TECTONICS
VOLCANIC ACTIVITY
GEOHAZARDS
Keyword source BGS Keyphrases
Spatial details
Spatial Reference System Geographical, topographical or geological place names and locations, including postal address
Dataset extent
Coverage (Lat/Long) North boundary : -4
East boundary  : 170
South boundary : -16
West boundary  : 155
Metadata
Metadata language English
Metadata last updated 2nd May 2018
Metadata standard compliance NERC profile of ISO19115:2003
Copyright and IPR
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.